# leth
## Cornish
### Etymology

From Middle Cornish laez, from Old Cornish lait, from Proto-Brythonic *llaɨθ, borrowed from Latin lac. Cognate with Breton laezh and Welsh llaeth.

### Noun

leth m (plural lethow)
* milk

#### Derived terms

* amethyans leth (“dairy farming”)
* boos leth (“milk based food”)
* bugh leth (“milk cow”)
* gwerther leth (“milkman”)
* gweryn leth (“milk churn”)
* kanna leth (“milk churn”)
* kert leth (“milk lorry, milk float”)
* leth didhehen (“skimmed milk”)
* leth gluthys (“condensed milk”)
* leth kowlys (“curdled milk”)
* leth kreftus (“formula milk”)
* leth kriv (“raw milk”)
* lethek (“dairy, milky”)
* leti (“dairy (farm)”)

## Middle English
### Noun

leth (plural leþes)
* Alternative form of lyth

## Old Irish
### Etymology

From Primitive Irish *ᚂᚓᚈᚐᚄ (*letas), from Proto-Celtic *letos, perhaps cognate with Latin latus (“side”), or from Proto-Celtic *ɸletos.
Celtic cognates include Welsh lled (“breadth, width, half”), Middle Breton let, led (“large”), and Cornish les.

### Pronunciation

* IPA: /l͈ʲeθ/

### Noun

leth n (genitive leith or leithe, nominative plural leth or leithe)
* half
** c. 700, Glosses in the Computus Einsidlensis, published in "The early Old Irish material in the newly discovered Computus Einsidlensis (c. AD 700)", Ériu 58 (2008, Royal Irish Academy), edited and with translations by Jacopo Bisagni and Immo Warntjes
    maá triun, laigu leut[5/12 is] greater than one third, smaller than one half.
* direction
* side

#### Declension

Especially in meaning "half":
Neuter o-stem :
| | Singular | Dual | Plural |
| Nominative | leth$^N$ | leth$^N$ | leth$^L$ |
| Vocative | leth$^N$ | leth$^N$ | leth$^L$ |
| Accusative | leth$^N$ | leth$^N$ | leth$^L$ |
| Genitive | leith$^L$ | leth | leth$^N$ |
| Dative | leuth$^L$ | lethaib | lethaib |
| Initial mutations of a following adjective: $^H$ = triggers aspiration $^L$ = triggers lenition $^N$ = triggers nasalization ||||
Especially in meaning "side":
Neuter s-stem :
| | Singular | Dual | Plural |
| Nominative | leth$^N$ | leth$^N$ | leithe$^L$ |
| Vocative | leth$^N$ | leth$^N$ | leithe$^L$ |
| Accusative | leth$^N$ | leth$^N$ | leithe$^L$ |
| Genitive | leithe$^L$ | leithe | leithe$^N$ |
| Dative | leith$^L$ | leithib | leithib |
| Initial mutations of a following adjective: $^H$ = triggers aspiration $^L$ = triggers lenition $^N$ = triggers nasalization ||||

#### Descendants

* Irish: leath
* Manx: lieh
* Scottish Gaelic: leth

### Mutation

Note: Certain mutated forms of some words can never occur in Old Irish. All possible mutated forms are displayed for convenience.

### References

* ↑ Matasović, Ranko (2009) “*letos”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, pages 238-239
* Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “leth”, in eDIL: Electronic Dictionary of the Irish Language

## Old Saxon
### Alternative forms

* lēþ

### Etymology

From Proto-West Germanic *laiþ.

### Noun

lēth n
* an evil person or thing

#### Descendants

* Middle Low German: lêt, leit
** Low German:
*** Westphalian:
    Münsterländisch: leed
    Westmünsterländisch: leed

## Scottish Gaelic
### Etymology

From Old Irish leth, from Proto-Celtic *letos, perhaps cognate with Latin latus (“side”), or from Proto-Celtic *ɸletos.
Celtic cognates include Welsh lled (“breadth, width, half”), Middle Breton let, led (“large”), and Cornish les.

### Pronunciation

* IPA: /ʎe(h)/

### Numeral

leth
* half

#### Derived terms

* air leth
* às leth
* gu leth
* leisgeul
* leth mar leth
* leth-phinnt

#### Related terms

* leth-

### References

* ↑ Matasović, Ranko (2009) “*letos”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, pages 238-239

### Further reading

* Edward Dwelly (1911) “leth”, in Faclair Gàidhlig gu Beurla le Dealbhan [The Illustrated Gaelic–English Dictionary]‎, 10th edition, Edinburgh: Birlinn Limited, →ISBN
* Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “leth”, in eDIL: Electronic Dictionary of the Irish Language

## Yola
### Etymology

From Middle English leten, from Old English lǣtan, from Proto-West Germanic *lātan.

### Pronunciation

* IPA: /lɛt/

### Verb

leth
* let
** 1867, GLOSSARY OF THE DIALECT OF FORTH AND BARGY:Leth it be; Leth aam.Let it be; Let them.

### References

* Jacob Poole (d. 1827) (before 1828) William Barnes, editor, A Glossary, With some Pieces of Verse, of the old Dialect of the English Colony in the Baronies of Forth and Bargy, County of Wexford, Ireland, London: J. Russell Smith, published 1867, page 53